Common Name: MUSTARD FAMILY Habit: Annual to shrub; sap pungent, watery. Leaf: generally simple, alternate; generally both basal, cauline; stipules 0. Inflorescence: generally raceme, generally not bracted. Flower: bisexual, generally radial; sepals 4, generally free; petals (0)4, forming a cross, generally white or yellow to purple; stamens generally 6 (2 or 4), 4 long, 2 short (3 pairs of unequal length); ovary 1, superior, generally 2-chambered with septum connecting 2 parietal placentas; style 1, stigma entire or 2-lobed. Fruit: capsule, generally 2-valved, "silique" (length >= 3 × width) or "silicle" (length < 3 × width), dehiscent by 2 valves or indehiscent, cylindric or flat parallel or perpendicular to septum, segmented or not. Seed: 1--many, in 1 or 2 rows per chamber, winged or wingless; embryo strongly curved. Genera In Family: +- 330 genera, 3780 species: worldwide, especially temperate. Note: Highest diversity in Mediterranean area, mountains of southwestern Asia, adjacent central Asia, western North America; some Brassica species are oil or vegetable crops; Arabidopsis thaliana used in experimental molecular biology; many species are ornamentals, weeds. Aurinia saxatilis (L.) Desvaux in cultivation only. Aubrieta occasional waif in central NCoR, Carrichtera annua (L.) DC. in SCo, Iberis sempervirens L., Iberis umbellata L. in PR, Teesdalia coronopifolia (Bergeret) Thell., Teesdalia nudicaulis (L.) W.T. Aiton in southern NCoRO, CCo. Cardaria, Coronopus moved to Lepidium; Caulostramina to Hesperidanthus; Guillenia to Caulanthus; Heterodraba to Athysanus; California taxa of Lesquerella to Physaria; Malcolmia africana to Strigosella. eFlora Treatment Author: Ihsan A. Al-Shehbaz, except as noted Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Habit: Annual [to perennial herb]; hairs simple or 0. Leaf: basal rosetted or not, petioled, simple, entire, dentate, or pinnately lobed; cauline petioled or sessile, base not lobed. Inflorescence: elongated. Flower: sepals erect to spreading, lateral pair generally not sac-like at base, tips horned or not; petals yellow (purple) [white, pink], clawed. Fruit: silique, dehiscent, linear or awl-shaped, cylindric, unsegmented, valves not coiling when fruit dehisces; stigma 2-lobed. Seed: 6--160, in 1 row, wingless. Etymology: (Greek: for various mustards) eFlora Treatment Author: Ihsan A. Al-Shehbaz Reference: Warwick & Al-Shehbaz 2003 Novon 13:265--267
Sisymbrium loeselii L.
NATURALIZED Stem: (2)3.5--12(17.5) dm, branched distally, generally densely reflexed-hairy proximally, glabrous distally. Leaf: basal, proximal cauline (1.5)2.5--8(12) cm; lateral lobes 2--4 pairs, entire or dentate; distal entire or dentate. Flower: sepals 3--4 mm, not horned; petals 6--8 mm, 2--3 mm wide, claw 2.5--3.5 mm. Fruit: 2--3.5(5) cm, 0.9--1.1 mm wide, linear, younger not overtopping flowers; style 0.3--0.7 mm; pedicel spreading to ascending, 5--12(15) mm, narrower than fruit. Seed: 40--60, 0.7--1 mm, oblong. Chromosomes: 2n=14. Ecology: Disturbed areas, fields, pastures; Elevation: 1000--2400 m. Bioregional Distribution: GB; Distribution Outside California: to northern United States, Canada, native to Europe. Flowering Time: May--Nov Jepson eFlora Author: Ihsan A. Al-Shehbaz Reference: Warwick & Al-Shehbaz 2003 Novon 13:265--267 Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Sisymbrium irio Next taxon: Sisymbrium officinale
Botanical illustration including Sisymbrium loeselii
Citation for this treatment: Ihsan A. Al-Shehbaz 2012, Sisymbrium loeselii, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=44652, accessed on April 25, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 25, 2024.
No expert verified images found for Sisymbrium loeselii.
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